Grain-door retainer.



H. W. BURNETT.

GRMN D003 RETAINER.

APPLICATION msn FEB. 10. |916.

Patented 0st. 29, 1918.

RICHARD WEBB' BURNETT, or CHICAGO, ILLINOIS.

GRAIN-DOOR RETAINER.

appliqationnleaFebruary1o,191e. serialnavaaas.

To @ZZ-.taiwan vit-may concern:A l

Be it known that l, RICHARD Warns- BUR- Nmr, of the city of Chicago, State of Illi- Y nois, United States of America, have invented certain new and useful improvements in Grain-Door Retainers, of which the following is a full, clear, and exact description.

My invention relates particularly to displaceable devices permanently carried by the door frame and adapted when in one position to retain the door closed and when displaced to release the door and provide an unobstructed doorway; the invention has for its object to provide a door lock of this type which will possess the qualities of durability, lightness and simplicity. To this end my invention consists of a displaceable door stop in the form of a bulb-iron pivotally. connected to the door post which is formed with a shallow seat to accommodate the bulb and permit the stop to lie flat against the face of the door post. Another feature of the invention consists lof a key adapted to engage the stop in eitherV of its positions and. lock it.

For full comprehension, however, of my invention reference must be had to the accompanying drawings forming a part of this specication in which similar reference characters indicate the same parts and wherein, A

Figure l is a detail horizontal sectional view of a door post with my improved door stop attached thereto;

Fig. 2 is a fragmentary vertical'sectional view of one side of a grain car illustrating the door post and door stop in elevation with the door stop shown in open position in dotted lines;

Fig. 3 is a vertical sectional view of. one of the door posts illustrating the door stop in position supporting the door, a small portion only of the latter being shown.

Figs. 4, 5, 6, 7, 8, 9, 10, and 11, and 15, being views similar to Fig. 1, and illustrating modifications of the post and means for forming the seat for the bulb.

Figs. 12 and 13 are detail views of the vdoor stop; and

Fig. 14 is a vertical sectional view taken on a similar line to that of Fig. 1 and illustrating a modification of the locking key.

In Figs. 1 to 8, 11, 14, and 15 inclusive my improved door stop is shown applied to steel door posts, and in Figs. 9 and 10 to wooden door posts. The door posts in Figs. 1.-'1 and 7, S, and 11 consist ofan ordinary structural angle iron b, the steel post of Figs. 5, and 6, being specially rolled members, the member in Fig. 5 having a shoulder c rolled upon one flange a short distance from the corner, while the member d of Fig. 6 is rolled with a longitudinal groove e and the member 7e of Fig. 15 has one ange offset as at g. These shoulders, grooves and offsets form seats la. for the bulb of the door stop and a similar seat is formed on the angle iron I) of Figs. 1, 4f, 7, 8, and 11, by fastening either a channel iron a', a flat bar j, a beveled bar 7c or an angle m as shown respectively in Figs. 1, 4, 7, 8, and 11. This seat is formed in wooden posts either by forming a groove n, as shown in Fig. 9, and cutting away a corner o as in Fig. 10.

The door stops accommodated in these seats consist of a bulb-iron preferably rolled with its iiange extending tangentially from the bulb, but to meet the construction of post Illustrated in Fig. 12 the stop is rolled with its flange center of the bulb as shown at y. The stop is pivoted in the seat of the door post by having its lower end coped off to present a hinge pin s seated in a socket in the threshold-angle u, while a hinge pin o, similarly formed at the upper end of the door jamb is pivoted in a socket cast in a slide w for the locking key 2. This key consists of a comparatively heavy vertically slidable bolt substantially of plate form and of greater length than the slideway to present a downward projection 3, one side edge of which is in bearing relation with the flange of the bulb-iron when the latter is in door retaining position, and when the bulb iron is swung out of this position it is adapted to be clamped against the door post also by the key.

If desired the key for locking the door may be located in a casting 10 bolted or otherwise rigidly fastened to the thresholdangle u and adapted to be inserted upwardly therethrough to `locking position and be maintained in this position by a spring 12.

What I claim is as follows z In a railway car the combination with a door-post and threshold-member and a doorstop of bulb-iron form xed against axial movement and pivoted upon the door-post of means for locking the said door-post in position said means consisting of a casting fastened to the threshold member, a slidable key mounted in said casting and adapted to engage the smid door-stop, smid key having LL serrated Side und a bow-'spring ,i.1 \se1:ted Wlthln the Castlng between one wall thereo and the serrated slde of the key and c011- structed and arranged to have its ends bearV Within the Serratons and means for limiting the extent of movement of the key, sfud means conslstlng of a slot and pm.

RGHARD WEBB BURNETT. Witnesses:

ALLAN S. BARROWS, C. CJKENURICK.

Copies of `this`patent1may be obtained for ve cents each, by addressing the v\Conmxiszsoner of Patents, Washingtoni'jl). C. 

